(a) The hearing examiner's decision may be appealed within 15 days of the issuance of the decision to the Board of Appeals and Review.(b) The parties may appeal a decision of the Board of Appeals and Review within 15 days of the issuance of the decision to the District of Columbia Court of Appeals. Mar. 25, 1986, D.C. Law 6-100, § 10, 33 DCR 781.